Bruno Oliveira | abstractj

Onward to Keycloak

Fri, 29 Jan 2016 00:00:00 +0000

“Most people never get there. They’re afraid or unwilling to demand enough of themselves and take the easy road, the path of least resistance. But struggling and suffering, as I now saw it, were the essence of a life worth living. If you’re not pushing yourself beyond the comfort zone, if you’re not constantly demanding more from yourself — expanding and learning as you go — you’re choosing a numb existence.

Inspecting Android apps with Drozer

Fri, 15 Jan 2016 00:00:00 +0000

Write secure software sometimes is like opening a can of worms. We postpone, because it’s a burden and “can wait”. Suddenly it starts to get messy and really hard to protect — in some scenarios, we start to lose our minds. Google Play Store has now 1.6 million apps available for download, plus a considerable number deployed on third-party stores. What makes Android so attractive for users, poses a significant challenge for us developers.

A few words about Docker

Thu, 11 Sep 2014 00:00:00 +0000

Perform repetitive tasks, are the way to succeed or hit boredom. For example, practice guitar everyday can make you better, don’t learn anything new, boring.

On AeroGear, contributions come from different platforms: Android, iOS, JavaScript, Windows Mobile and hybrid like Apache Cordova. Specialists or not, everyone should be able to run each other’s project.

BouncyCastle... SpongyCastle... Android. Oh my!

Thu, 27 Mar 2014 00:00:00 +0000

Provide a generic API for client and server sometimes can be poisonous. The Java version of AeroGear Crypto was built aiming to share the same codebase, although there are big differences between them.

Android is Java, but not everything is inside. The fresh implementations for digital signatures, private key cryptography and key agreement are not fully supported — each manufacturer can add their own crypto provider, bringing more fragmentation to the platform.

AeroGear, cryptography and iOS

Fri, 21 Feb 2014 00:00:00 +0000

In the last year I’ve started to explore the dirty field of cryptography for mobile devices, the plan was to provide a symmetric API on AeroGear with the bare minimum foundation like hash functions, public key algorithms, digital signatures, symmetric encryption and key derivation functions to benefit Android, iOS and JavaScript developers.

Unlike Android and JavaScript, the iOS environment is problematic when it comes to cryptography, popular APIs like: PollarSSL and OpenSSL had presented portability issues and license restrictions, leading us to stick with wrappers on top of Common Crypto

Kalium 0.2.0 released!

Fri, 06 Sep 2013 00:00:00 +0000

Today I’m pleased to announce that, after some months of fun and delays Kalium was released on Maven Central repository.

For people who don’t know Kalium, was built on top of jnr-ffi with the goal of providing Java bindings to libsodium, a portable API-compatible version of NaCl library.

In this release I would like to thank Douglas Campos, Tony Arcieri, Tony Garnock-Jones, Vipul A M and Wayne Meissner for their support and kind contributions.

RubyConf Brazil 2013

Sun, 01 Sep 2013 00:00:00 +0000

On last thursday I had the honour to speak at RubyConf Brazil about Krypt, for those who don’t know this is a kind of conference which you definitely wish to return back on the next year.

The Ruby community is open and friendly for newcomers or people coming from other programming languages. It doesn’t matter whether you’re working with .NET, Ruby, Java, Python or Go, if you want to learn something new and crazy RubyConf Brazil is your place to go.

JSConf BR - The awesomesauce

Thu, 27 Jun 2013 00:00:00 +0000

Last week I had the privilege of attending the first JSConf in Brazil held at Fortaleza, CE. I never got the chance to participate of any JSConf until this year and my friend, I have to say: it was a blast! For people who don’t know or wasn’t able to attend, I feel sorry for you, because this is one of those conferences that makes you feel more like meeting good friends than talking to strangers.

TorqueBox - O melhor dos dois mundos

Fri, 05 Aug 2011 00:00:00 +0000

Some weeks ago, I talked about TorqueBox here in Brazil at meeting of GURU-SP. For people who don’t know, this is amazing group of people that loves ruby and technology.

Match cases on Scala

Fri, 10 Dec 2010 00:00:00 +0000

Functional programming is a well-know paradigm present in languages like Scheme, Haskell, Lisp and others, the main goal is to provide code easy to write and reuse.

This paradigm concept came from mathematics, where expressions are evaluated to functions and they always return the same result every time asked. Think about the Haskell code below:

factorial :: Integer -> Integer
factorial 0 = 1
factorial x = x * factorial (x - 1)